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Doug Gruber, LADC

Addiction (Substance Use Disorder) Counselor in Waterbury, CT · enumerated 2012 · practices at Connecticut Renaissance, Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992076780

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Registry record

Entity type Individual (Type 1)
Name Doug Gruber
Credential LADC
Sex Male
Practice address 466 W Main St, Waterbury, CT, 06702
Phone (203) 591-8010
Fax (203) 591-8586
Enumeration date Jan 25, 2012
Last updated in NPPES Jan 25, 2012

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 000395 (CT) Primary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 000395 (CT) Secondary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Doug Gruber?
The National Provider Identifier (NPI) for Doug Gruber is 1992076780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Doug Gruber practice?
The practice location on file with NPPES is in Waterbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-25.